Automobile producer-gas plant



J. W. PARKER. AUTOMOBILE PQRODIUCER GAS PLANT. APPLICATION man Aue.29. 1921.

1,420,570. I Patented June 20, 19.2 2.

. [ni'efiZbr Jamar Wl arlrer .zzz'am a JAMES WILLIAM PARKER, or minno ENGLAND.

- AUTOMOBILE PRODUCER-GAS PLANT.

To all whom it mag concern: I i

' Be it known that I, J AMES WILLIAM PAR- KER, subject of the King of Great Britain,

and resident of Harrow, England, have invented certain new and useful Improvements in Automobile Producer-Gas Plants (for which I have filed an application in Great Britain April 8, 1920, Patent No. 162,-

899) of which the following is v a specification.

This invention relates to steam generators for producer gas plants and, has for its object a simple form of generator adapted to convert water into steam in the quantity required from time to time without the employment of thermo-dynamically operated valves.

According to this invention a vessel adapt,

7 ed to be supplied with water to a constant level is disposed beneath the firebars of the furnace and a projection or projections from the firebars is or are adapted to project i into said vessel and to dip into the water therein.

For the purpose of preventing the ends of the firebars of steam boiler and other furnace grates from burning away it has been proposed to provide therebeneath a trough of water into which dips a rib onthe bars and no claim is made to this feature per se.

One form of the invention is illustrated by the accompanying drawings wherein Figure 1 is a central sectional elevation and Figure 2 is a sectional plan on the line 2' 2 Figure 1.

The form of the invention illustrated is especially adapted for use in connection with a small portable producer gas plant and comprises a furnace a lined with refractory material I) and arranged concentrically within an outer casing 0, the annular space between the furnace at and casing a serving to pre-heat and conduct a supply of air entering by an inlet at near the top of the casing 0, to the grate which, as shown, may be constituted by an annuluse, a diametral rib f and a plurality of bars 9 cast integral. A fire door is arranged in a passage h leading to the furnace a from the casing c'just above the grate and a similar ash pit door is provided as at i just below said grate. A feed hopper y is disposed above the furnace a which latter is provided with a gas outlet and a perforated gas screen Z. A pipe m, connected with a source Application filed AugustflB, 1921 Serial No. 496,662.

supported-by the firebars q apart said bars.

of supplyv of water through a fioatchamber Specification of Letters Patent. P te t d J '20,1922

n or similar. means for automaticallyregulating the, flowzof water to said pipevm, is disposed horizontally below and transversely of the firebars g of the furnace wand the upper, part of said pipe is slotted-in the direction of its length as at o; Beneath the rib if the grate'is provided with a downwardly directed tongue .or fin p lying in the central transverse plane thereof, said tongue or fin p belng adapted to project into the slot 0 in the pipe m and to be a loose fit therein so as to leave a narrow gap for the escape of steam from said pipe. Preferably the tongue or fin p is narrower thanthe rib f so as to project at either side and be adapted to overlie the gap justmentioned so as to prevent the entrance of ash or dust to the pipe m; In use a supply of water is maintained in the pipem at a predetermined level and is'heated partly by radiation from the fire and chiefly by conduction through the tongue or finp the greater theintensity of heat of the fire the greater the conduction to the water so that steam is generated in the required volume and escapes by the gaps between the fin p and slot 0, the water level being automatically maintained without the employment of any thermodynamically operated valve.

Consequently the plant vmay be very cheaply and readily produced and there are no parts likely to get out of order.

In some cases the fire bars 9 .instead of constituting parts of an integral casting may be formed individually and shouldered as usual at their ends and adapted to be supported by transverse bearing members, said shouldered ends serving also to space tongue or fin adapted to projectinto the slot 0, mentioned above. If desired the pipe m in- I Some or all of the fire bars may be formed each centrally of its lengthwith a down-wardly directed transversestead of being slotted in the direction of its length as at 0 may be slotted transversely of its length at predetermined positions, some or all of the firebars g in such case, being formed each centrally of its length with a downwardly directedtongue or fin lying in the central longitudinal plane thereof, said tongue or fin being adapted to project into a transverse slot in the pipe m. i

- formed at either side with an arcuate lateral flange adapted to overlie the gaps between the transverse slots and the tongues or fins so as to prevent the entrance of ash or dust to the pipe m.

As many firebars as desired maybe formed with the downwardlydirected fins, the pipe being correspondingly slotted.

What I claim is 1. A steam generator for automobile pr0- ducer gas plants comprising a vessel adapted to be supplied with water to a constant level and disposed beneath the 'lirebars of the furnace, a projection from said firebars adapted to project into said vessel and to dip into water therein.

2. A steam generator-for automobile pro-' ducer gas plants comprising a longitudinally slotted pipe adapted to be supplied with water to a constant level and disposed beslotted pipe disposed beneath the grate and means for maintaining a constant level of water within said slotted pipe.

4. A steam generator for automobile producer gas plants comprising a pipe adapted to be supplied with water to a constant level and disposed beneath the grate said :pipe being slotted transversely and the grate being provided with depending tongues that are arranged each in the central longitudinal plane of the respective fire bar of said grate and dip into the water insaid slotted pipe.

In testimony whereof I alrix my signature.

1 JAMES NILLDXM PARKER.- 

